CVE-2024-11857 is classified as a high-severity vulnerability with a CVSS score of 8.5. This vulnerability allows local attackers with regular privileges to create a symbolic link with the same name as a specific file. This manipulation leads to arbitrary file deletion, which can subsequently be leveraged for privilege escalation. Given its potential impact, organizations must address this vulnerability promptly.
The Realtek Bluetooth HCI Adaptor is affected, presenting a significant risk, particularly in environments where local access is possible. The exploitation status is currently classified as high, with no public exploits confirmed as of now. Given the nature of this vulnerability, organizations should prioritize patching immediately.
Risk to organizations includes unauthorized access and potential system compromise due to privilege escalation. The urgency for defenders is heightened, as the consequences of this vulnerability can lead to severe operational impacts.
Organizations are encouraged to assess their exposure to this vulnerability and implement necessary mitigations without delay.
Vulnerability Details
The vulnerability is described as a Link Following issue within the Bluetooth HCI Adaptor from Realtek. The attack vector is local, meaning that an attacker must have physical or local access to the affected system. The attack complexity is low, and only low privileges are required to exploit this vulnerability.
According to the CVSS v4.0 score, the confidentiality, integrity, and availability impacts are all rated as high. This indicates that successful exploitation can lead to significant compromise of sensitive data and system functionality.
The vulnerability is currently awaiting analysis for further details on affected versions and specific remediation guidance. The official publication date for this vulnerability is June 2, 2025.
Technical Analysis
The root cause of CVE-2024-11857 is related to improper handling of symbolic links, which allows attackers to manipulate file deletions. This vulnerability can be exploited locally with no user interaction required.
The attack vector being local implies that the attacker must already have access to the system. The attack complexity is low, and only low privileges are necessary to carry out the exploit, making it accessible to a broader range of attackers.
The impacts on confidentiality, integrity, and availability are significant, as the attacker can delete arbitrary files, potentially leading to further exploitation of the system.
Risk & Impact Analysis
Real-world deployment risks associated with this vulnerability include unauthorized access to sensitive files and potential system compromise. Organizations should recognize that the blast radius for this vulnerability can be extensive, especially in environments with multiple local users.
The urgency for remediation is classified as high due to the potential for significant operational impact.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
As of now, specific affected versions have not been disclosed. Organizations should assume that all versions of the Realtek Bluetooth HCI Adaptor are potentially affected until a vendor patch is released.
Mitigation & Remediation
Organizations should prioritize patching immediately to remediate this vulnerability. If a patch is not yet available, it is recommended to implement network controls and monitoring to detect any unauthorized access attempts.
For more comprehensive security measures, organizations can consider engaging in penetration testing to validate the effectiveness of their security posture.
Detection Guidance
Monitoring for unusual file deletions and unauthorized access attempts can be critical in detecting exploitation attempts related to this vulnerability.
Organizations should review logs for indicators of tampering with symbolic links and ensure that file integrity monitoring is in place.
AppSecure Threat Intelligence Insight
CVE-2024-11857 highlights the importance of securing local access to systems, particularly for devices that manage critical functions. Organizations must implement strict access controls and regular monitoring to guard against such vulnerabilities.
By understanding the patterns of exploitation and the potential impact of vulnerabilities like this one, security teams can better prepare their defenses.
For further information on enhancing your security posture against local vulnerabilities, consider reviewing our vulnerability management program and the importance of regular security assessments.
Organizations should also consider adopting a comprehensive approach to security that includes penetration testing as a proactive measure to discover weaknesses before they can be exploited.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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